You know you're a teabag collector when:
You feel compelled to purchase new kinds of tea that you don't particularly care for, just so you can save the wrappers.
You know words like "tea", "green", "black", "lemon", and "apple" in ten (or more) different languages.
You've drank tea without knowing what kind it was, because you couldn't read the wrapper.
You get excited when you see a new packaging design for Lipton's old kinds of teas.
You've secretly taken empty teabag wrappers from someone's trashcan when you were at their house.
You never, ever just tear open a teabag. In fact, you have a special knife or scissors just for opening teabags.
You never make a cup of tea with a teabag that still has a tag attached to it.
When your guests have tea, you open the bag for them. If you're feeling especially kind (or self-conscious), you might let them use the tag, but you keep a watchful eye on it so you can remove the tag before the used teabag gets thrown away.
When your friends offer you a cup of tea, you look at their selection and drink a kind that you don't already have in your collection. Usually you already have envelopes from most of the kinds of tea they have, anyway.
You have developed specialized detective skills so that when you're in the tea aisle at the grocery store, you can shake, tap, jiggle, and squeeze an unopened box of tea and figure out whether the teabags inside are individually wrapped.
You're extremely disappointed when you open the new box of tea you bought and discover that the individually wrapped teabags are in plain white envelopes.
When you're putting empty teabags into your albums, you can identify whether the teabag still has the tag inside (or attached) by simply feeling the bag rather than looking.
And lastly:
Your husband is afraid to buy you tea for a gift, because he has no idea which one(s) you still need for your collection. :)